1 files changed, 208 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_gcc/example/example.rs b/compiler/rustc_codegen_gcc/example/example.rs
new file mode 100644
index 00000000000..5878e8548d9
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/example/example.rs
@@ -0,0 +1,208 @@
+#![feature(no_core, unboxed_closures)]
+#![no_core]
+#![allow(dead_code)]
+
+extern crate mini_core;
+
+use mini_core::*;
+
+fn abc(a: u8) -> u8 {
+    a * 2
+}
+
+fn bcd(b: bool, a: u8) -> u8 {
+    if b {
+        a * 2
+    } else {
+        a * 3
+    }
+}
+
+fn call() {
+    abc(42);
+}
+
+fn indirect_call() {
+    let f: fn() = call;
+    f();
+}
+
+enum BoolOption {
+    Some(bool),
+    None,
+}
+
+fn option_unwrap_or(o: BoolOption, d: bool) -> bool {
+    match o {
+        BoolOption::Some(b) => b,
+        BoolOption::None => d,
+    }
+}
+
+fn ret_42() -> u8 {
+    42
+}
+
+fn return_str() -> &'static str {
+    "hello world"
+}
+
+fn promoted_val() -> &'static u8 {
+    &(1 * 2)
+}
+
+fn cast_ref_to_raw_ptr(abc: &u8) -> *const u8 {
+    abc as *const u8
+}
+
+fn cmp_raw_ptr(a: *const u8, b: *const u8) -> bool {
+    a == b
+}
+
+fn int_cast(a: u16, b: i16) -> (u8, u16, u32, usize, i8, i16, i32, isize, u8, u32) {
+    (
+        a as u8, a as u16, a as u32, a as usize, a as i8, a as i16, a as i32, a as isize, b as u8,
+        b as u32,
+    )
+}
+
+fn char_cast(c: char) -> u8 {
+    c as u8
+}
+
+pub struct DebugTuple(());
+
+fn debug_tuple() -> DebugTuple {
+    DebugTuple(())
+}
+
+fn size_of<T>() -> usize {
+    intrinsics::size_of::<T>()
+}
+
+fn use_size_of() -> usize {
+    size_of::<u64>()
+}
+
+unsafe fn use_copy_intrinsic(src: *const u8, dst: *mut u8) {
+    intrinsics::copy::<u8>(src, dst, 1);
+}
+
+unsafe fn use_copy_intrinsic_ref(src: *const u8, dst: *mut u8) {
+    let copy2 = &intrinsics::copy::<u8>;
+    copy2(src, dst, 1);
+}
+
+const ABC: u8 = 6 * 7;
+
+fn use_const() -> u8 {
+    ABC
+}
+
+pub fn call_closure_3arg() {
+    (|_, _, _| {})(0u8, 42u16, 0u8)
+}
+
+pub fn call_closure_2arg() {
+    (|_, _| {})(0u8, 42u16)
+}
+
+struct IsNotEmpty;
+
+impl<'a, 'b> FnOnce<(&'a &'b [u16],)> for IsNotEmpty {
+    type Output = (u8, u8);
+
+    #[inline]
+    extern "rust-call" fn call_once(mut self, arg: (&'a &'b [u16],)) -> (u8, u8) {
+        self.call_mut(arg)
+    }
+}
+
+impl<'a, 'b> FnMut<(&'a &'b [u16],)> for IsNotEmpty {
+    #[inline]
+    extern "rust-call" fn call_mut(&mut self, _arg: (&'a &'b [u16],)) -> (u8, u8) {
+        (0, 42)
+    }
+}
+
+pub fn call_is_not_empty() {
+    IsNotEmpty.call_once((&(&[0u16] as &[_]),));
+}
+
+fn eq_char(a: char, b: char) -> bool {
+    a == b
+}
+
+unsafe fn transmute(c: char) -> u32 {
+    intrinsics::transmute(c)
+}
+
+unsafe fn deref_str_ptr(s: *const str) -> &'static str {
+    &*s
+}
+
+fn use_array(arr: [u8; 3]) -> u8 {
+    arr[1]
+}
+
+fn repeat_array() -> [u8; 3] {
+    [0; 3]
+}
+
+fn array_as_slice(arr: &[u8; 3]) -> &[u8] {
+    arr
+}
+
+unsafe fn use_ctlz_nonzero(a: u16) -> u16 {
+    intrinsics::ctlz_nonzero(a)
+}
+
+fn ptr_as_usize(ptr: *const u8) -> usize {
+    ptr as usize
+}
+
+fn float_cast(a: f32, b: f64) -> (f64, f32) {
+    (a as f64, b as f32)
+}
+
+fn int_to_float(a: u8, b: i32) -> (f64, f32) {
+    (a as f64, b as f32)
+}
+
+fn make_array() -> [u8; 3] {
+    [42, 0, 5]
+}
+
+fn some_promoted_tuple() -> &'static (&'static str, &'static str) {
+    &("abc", "some")
+}
+
+fn index_slice(s: &[u8]) -> u8 {
+    s[2]
+}
+
+pub struct StrWrapper {
+    s: str,
+}
+
+fn str_wrapper_get(w: &StrWrapper) -> &str {
+    &w.s
+}
+
+fn i16_as_i8(a: i16) -> i8 {
+    a as i8
+}
+
+struct Unsized(u8, str);
+
+fn get_sized_field_ref_from_unsized_type(u: &Unsized) -> &u8 {
+    &u.0
+}
+
+fn get_unsized_field_ref_from_unsized_type(u: &Unsized) -> &str {
+    &u.1
+}
+
+pub fn reuse_byref_argument_storage(a: (u8, u16, u32)) -> u8 {
+    a.0
+}